Quote:
Originally Posted by Adam Y.
No. It's surprisingly much more complicated than that. The main reason is that in order to do that you have to account for the distortions caused by the camera. I actually performed a calibration for my optics project using a 200.00 dollar camera. The distortion for some areas of the image was as high as 20 pixels.
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Photographers and camera geeks make a huge deal about lens distortions.
Why not simply use trig and a pan-tilt servo deal so you can read the elevation to the target?